France Open 2026 - Sudoku R1 (13thth - 17thth June) ends in 21 hours 46 minutes •Discuss
France Open 2026 - Sudoku R2 (13thth - 17thth June) ends in 21 hours 46 minutes •Discuss
France Open 2026 - Puzzle R1 (13thth - 17thth June) ends in 21 hours 46 minutes •Discuss
France Open 2026 - Puzzle R2 (13thth - 17thth June) ends in 21 hours 46 minutes •Discuss
World Sudoku & Puzzle Championship 2026

Joeri

Player Profile : tchakka
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Real name Joeri
Puzzle Blog
Country The Netherlands
Date registered2022-01-30 1:52 AM
Last logon2026-06-16 4:48 AM
Total posts1 
Rank
LMI RatingsCurrent RankCurrent RatingsBest RankBest RatingsRatings History
LMI Puzzle Ratings 179 521.1768 179 521.1768 History
LMI Sudoku Ratings 426 299.3832 426 310.008 History

Puzzle Testtchakka's Ranktchakka's ScoreTest Max ScorePSRSNSW
2026R4 (Shading & Loops) 99 47.8 132.8 562 614 575 1
2026R3 (OP & Regions) 156 41.9 125.3 466 470 467 1
2026R2 (MII & Number Placement) 159 49.9 132.8 471 460 468 1
2026R1 (Classics) 173 48.7 132.033 532 569 541 0.8
2025R5 (Word & Casual) 160 47.8 119.8 481 471 479 0.8
2025R4 (Shading & Regions) 123 75.5 137.1 556 580 562 0.7
2025R3 (Numbers & MII) 207 28.8 123.417 351 317 343 0.7
2025R2 (Loop & OP) 142 45 124.25 541 568 548 0.6
2025R1 (Classics) 158 54.8 134.883 544 595 557 0.6
April Contest 2024 63 7 98
2024R1 (Classics) 222 32.7 128.45 504 512 506
PANFOPCWHTTAPA 2 266 86.5 148.717 414 386 407
Sudoku Testtchakka's Ranktchakka's ScoreTest Max ScorePSRSNSW
2026R4 (Irregular & Converse) 221 29.4 140.35 304 288 300 1
2026R3 (OE & Hybrids) 311 17.6 140.35 191 137 178 1
2026R2 (Math & Outside) 284 28.6 141.283 349 377 356 1
2026R1 (Standard & Neighbours) 286 25 138.433 376 394 380 0.8

PS = Prorated Score (Score based on players's score, median score and top score in the test)
RS = Rank Score (Score based on player's rank in the test)
NS = Normalized Score (.75 * PS + .25 * RS)
W = Weight of the test
Click here for detailed logic of LMI Player Rating System v2.0